They should give it to you for the labor of taking it off. If not then 10 cents a running foot is cheap. It is a buck something a foot new. Unless you are going to reinstall it "as is" then the cost and labor of restripping the old finish and stain, sanding, filling nail holes, etc., and then reapplying new and possibly having problems with the new finish cause of prior imperfections you didn't get out, isn't worth the trouble to me. Just get new.